Your Essential Casual Shirts

I'm going shopping in the next couple of days (I mean REAL shopping, none of this piddling around) and just realised how low I am on casual shirts. I've got to the stage in my life where I feel much more comfortable in a shirt and my old print and scoop tees are starting to make me feel rather queasy when I look at them.

What casual shirts could you guys not live without? I own a light blue oxford and a couple of denim ones, although they're not great. This is to help me while browsing but also just out of interest to see what other people are into. Though if you are suggesting stuff for me personally, I'm looking for shirts under £50.

I'd recommend you go chambray rather than denim if you want to smarten up a little (although both shirts will do smart/casual and not proper smart). I bought the shirt in the link below recently in the Allsaints sale (from £75 to £37.50 is a bargain). It's slightly 'bluer' than the photos suggest and very denim looking, but lighter and slightly smarter, but with great workwear touches such as the placket tab.

No joke Jay, I was literally looking at that shirt right now and was about to post it on here and ask for everyones opinions. Yeah its lovely. I've never ordered from AllSaints before, whats your advice on the sizing? I'm a medium in Topman